AU509982B2 - Optical fibre transmission system - Google Patents

Optical fibre transmission system

Info

Publication number
AU509982B2
AU509982B2 AU31136/77A AU3113677A AU509982B2 AU 509982 B2 AU509982 B2 AU 509982B2 AU 31136/77 A AU31136/77 A AU 31136/77A AU 3113677 A AU3113677 A AU 3113677A AU 509982 B2 AU509982 B2 AU 509982B2
Authority
AU
Australia
Prior art keywords
transmission system
optical fibre
fibre transmission
optical
transmission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
AU31136/77A
Other versions
AU3113677A (en
Inventor
M Chown
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of AU3113677A publication Critical patent/AU3113677A/en
Application granted granted Critical
Publication of AU509982B2 publication Critical patent/AU509982B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/268—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light using optical fibres
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2587—Arrangements specific to fibre transmission using a single light source for multiple stations
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/22—Analogue/digital converters pattern-reading type
    • H03M1/24—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip
    • H03M1/26—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with weighted coding, i.e. the weight given to a digit depends on the position of the digit within the block or code word, e.g. there is a given radix and the weights are powers of this radix

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
AU31136/77A 1976-12-07 1977-12-01 Optical fibre transmission system Expired AU509982B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB509)2/76 1976-12-07
GB50962/76A GB1540907A (en) 1976-12-07 1976-12-07 System for obtaining data from a plurality of condition responsive optical devices

Publications (2)

Publication Number Publication Date
AU3113677A AU3113677A (en) 1979-06-07
AU509982B2 true AU509982B2 (en) 1980-06-05

Family

ID=10458115

Family Applications (1)

Application Number Title Priority Date Filing Date
AU31136/77A Expired AU509982B2 (en) 1976-12-07 1977-12-01 Optical fibre transmission system

Country Status (5)

Country Link
US (1) US4182935A (en)
AU (1) AU509982B2 (en)
BR (1) BR7708011A (en)
CH (1) CH625374A5 (en)
GB (1) GB1540907A (en)

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US4477725A (en) * 1981-08-27 1984-10-16 Trw Inc. Microbending of optical fibers for remote force measurement
FR2513049A1 (en) * 1981-09-15 1983-03-18 Thomson Csf Fibre=optic communication system for telephone network - uses duplexer at main station with input to transmission channel and output to receiving channel
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GB2166020B (en) * 1984-09-29 1988-05-18 Plessey Co Plc Otdr-uses multiple frequencies to detect distortions in an optical fibre
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FR2585159B1 (en) * 1985-07-17 1988-09-16 Framatome Sa DEVICE FOR CONDUCTING AND MONITORING AN INDUSTRIAL INSTALLATION BY TRANSMITTING INFORMATION AND ORDERS BY OPTICAL WAY
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US4750802A (en) * 1986-08-08 1988-06-14 Corning Glass Works Optical fiber dispersion compensator
US5189485A (en) * 1986-09-25 1993-02-23 The United States Of America As Represented By The United States Department Of Energy Wavelength meter having single mode fiber optics multiplexed inputs
DE3638455A1 (en) * 1986-11-11 1988-06-01 Licentia Gmbh Device for interference-free determination of the adjustment or setting of an angle or path of a carrier exhibiting coded information
FR2610104A1 (en) * 1987-01-23 1988-07-29 Bertin & Cie OPTICAL FIBER DEVICE FOR REMOTELY DETECTING THE STATUS OF A PHYSICAL PARAMETER IN RELATION TO AT LEAST ONE DETERMINED VALUE
US4901306A (en) * 1987-02-24 1990-02-13 American Telephone And Telegraph Company, At&T Bell Laboratories Wavelength-division multiplexed optical fiber network
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US9917650B2 (en) * 2015-09-25 2018-03-13 Transfert Plus, Société En Commandite Time sampled photodetector devices and methods
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Also Published As

Publication number Publication date
GB1540907A (en) 1979-02-21
US4182935A (en) 1980-01-08
BR7708011A (en) 1979-06-05
CH625374A5 (en) 1981-09-15
AU3113677A (en) 1979-06-07

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